The Mercedes-AMG’s 5.5-litre twin-turbo V8 engine won’t be installed in any more Mercedes models in 2016
It was only introduced in 2011 and praised for its power output, throttle response and sound, the M157 motor will be replaced by an all-new new twin-turbo 4.0-litre V8 already seen in the Mercedes-AMG GT and about to be incorporated into the new C63.
Despite it being a lot smaller, the new AMG engine is capable of delivering even more power than the current generation unit, and with dramatically improved fuel and Co2 emission figures.
This out-going 5.5-litre AMG engine will be used in the upcoming GLE Coupé, revealed at the 2015 Detroit motor show, and its final call in a new Mercedes will be in the convertible version of the new S-class coupé, which is due to be released in 2016.
Saying that, given existing product cycles, it seems that the engine will stay in production until the end of this decade.
The new Mercedes-AMG 4.0-liter V8 engine stands out from the rest because of its superior power delivery and motorsport-inspired design and performance. It was recently put in the Mercedes-AMG GT it boasts a classic AMG V8 engine sound, along with an immediate response and high pulling power. The torque curve is synonymous with good driveability: the peak of 650 Nm is available in the broad range from 1750 to 4750 rpm.
The newly developed AMG 4.0-liter V8 engine in the Mercedes-AMG GT combines outstanding performance with ideal weight distribution. It is installed as a front mid-engine behind the front axle and connected to the transmission at the rear axle via a torque tube in a transaxle configuration. The application of a dry sump lubrication system furthermore results in a significant lowering of the vehicle's centre of gravity and greater lateral acceleration. Thanks to the optimized twin-wire arc spray coating, the cylinder barrels of the AMG V8 engine are twice as hard as conventional cast iron cylinder liners – for maximum durability.